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Finding the Fourth Proportional to 168,670.35, 253,005.56 and 68,877.54

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Solution

The fourth proportional to 168,670.35, 253,005.56 and 68,877.54 is: 103,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,670.35 : 253,005.56 = 68,877.54 : x
  2. Step 2: Convert to fraction form
    168,670.35/253,005.56 = 68,877.54/x
  3. Step 3: Cross multiply
    168,670.35x = 253,005.56 × 68,877.54
  4. Step 4: Simplify right side
    168,670.35x = 17,426,400,579.12
  5. Step 5: Solve for x
    x = 17,426,400,579.12/168,670.35
  6. Step 6: Final answer
    x = 103,316.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.